what kind of streetable port jobs can you do to an 89 6 port block? what kind of power increase am i looking at. And who makes templates for that?

 

Clean up the primaries and Bridge port the secondary housings. I have seen a couple done like this and they are very well behaved.



As for templates I don't know of anyone doing those yet.

 

http://www.mazdatrix.com/toolport.htm



This is the 6-port template I used. But, I used Devcon to build a ramp at the end of the port the aux. sleeve sits in. This helps the transition into the chamber. My engine is noticably stronger. My intake is currently a Racing Beat upper manifold with a Weber 48DCOE. Racing Beat header and presilencer on the exhaust side. The car is fine to drive below 4K RPM but doesn't make much torque. If you have hills to deal with more revs are needed. Above 4K RPM up to 8K RPM the car pulls really nice. I haven't dyno'd or tuned yet as I don't have the final intake but its a vast improvement over the old engine. I'm sure I'd have a little more torque if I had left the aux. sleeves operating but my final intake manifold will not work with the sleeves.



http://www.aubetamotorsports.com/valley/page233.html

 

friggin nice mani first one peice 6 port i've ever seen. I wonder if its any better than a cleaned up stockbottom with RB top half?

 

Is there a way find a manifold that works with the sleeves ?

 

[quote name='rx7man629' date='Mar 15 2005, 08:07 PM']what kind of streetable port jobs can you do to an 89 6 port block? what kind of power increase am i looking at. And who makes templates for that?


[/quote]



Check out my dyno sheet here



https://www.nopistons.com/forums/ind...howtopic=43856



This is in Denver at 5280 feet. It'd be 15-20% stronger at sea level.